Fuel burning apparatus



Dec. 25, 1934.

L. B. JOYN ER FUEL BURNING APPARATUS 2 Sheets-Sheet 1 Filed May 29, 1933 INVENTOR.

LANSON 5J0 YNER m W mm, mm hag;-

ATTORNEYS.

2 Sheets-Sheet 2 L. B. JOYNER FUEL BURNING APPARATUS Filed May 29, 1933 Dec. 25, 1934.

E R5 S mN mm N Y W W O ,0 m J T 5 A N J O M M L immediately thereabove passes from the said space 16 in the header 14 to the space 22 in the header 13. The lower one of the two upper tubes extends from said space 1'? to the space 22 and the extreme upper tube extends from the space 21 to the aforementioned space 17. It is in this manner that a sinuous course or lane is provided over which liquid hydrocarbon from a supply source is adapted to flow and to finally pass from a discharge pipe 23 to said burner nozzle 9.

The header 13 is securely bolted to the front wall of the boiler structure, as shown at 24, and same serves to effectively seal an opening 25 which I cause to be formed in said front wall so that all of the tubes 12 will project into the water leg at the right of the structure as shown in Figure 1 of the drawings. It will be noted that the opening 25 is positioned with respect to the stay bolts 3 so that the weight of the tubes will be sustained by said bolts. It obviously follows that whenmounted as first stated, my preheating device will be entirely submerged in the water contained in said leg 6. In this manner the device is protected against the injurious efiect of a direct flame and it follows also that the heat of the water in said leg 6, which generally is about 180 F., when the boiler is in operation, will be entirely sufilcient to maintain the tubes 12 at a temperature that will serve to break down the viscosity of the liquid fuel when the device is in operation and thereby condition the fuel for effective vaporization thereof at the burner orifice.

The front wall of the header 13 and the rear wall'of the header 14 are formed with relatively alined threaded passages 26 and same are alined with the adjacent tubes 12, whereby to permit a cleaning tool (not shown) to be passed through said tubes whenever desired. Said passages 26 are normally closed by removable plugs 27.

An intake pipe 23 leads to the space and the fuel as it enters said space proceeds through the pipes 12, as shown by the arrows in Figure 2. From the space 21 the fuel in a heated state is conducted through said pipe 23 for discharge at said burner 10. The pipe 23 has a vertical branch 29 around which is an electrically heated coil 30 adapted to be supplied with current in any suitable well known manner. Fuel may be passed around the header 13 so as to not enter the pipes 12 and vto accomplish this I employ a by-pass valve 31. This I would use when the boiler has been shut down for an appreciable period of time and is cold. It follows that when oil is by-passed around the header 13, it will be subjected to the effect of heat produced at said coil 30. A thermometer 32 at the pipe 23 serves to indicate the temperature of the fuel when heated by the coil 30, and a similar thermometer 32 at the header 13 serves to indicate the temperature of the fuel as it leaves the space 21. After the boiler has been fired and the temperature of the water in the leg 6 has reached 180 F. or thereabout, the coil 30 is thrown out of operation and the fuel valve 31 closed so as to cause the fuel from the sourceof supply to enter said pipes 12 as aforestated. The lower end of the pipe 23 is formed into an angular branch 23 having a control valve 33 for regulating the admission of the fuel to a flexible tube 34, the latter having one of its ends attached to the burner nozzle 9.

From the construction of the device as herein set forth, it is manifest that same may be quickly installed upon a boiler structure without requiring expensive alterations to be made in the construction thereof, it being required simply that an opening be formed in the front wall of the boiler in line with the aforementioned leg 6, and that the device be passed through said opening to dispose same directly above the stay bolts 3. When this is accomplished, the header 13 serves to securely close said opening and the device is now ready for use in the manner and for the purpose stated.

I claim:

1. The combination, with a boiler structure having a longitudinally extending water leg at one side and a horizontal series of tie rods located in said water leg and extending from one side wall thereof to the other, the said boiler structure having its front wall formed with an opening, the bottom of which is substantially alined with said series of tie rods, of a liquid fuel pre-heating organization including inner and outer headers and fuel circulating tubes connecting the headers with each other and co-operable therewith and with each other to cause fuel when delivered to the outer header to be conducted to the inner header, thence back to the outer header by means of the respective tubes, the inner header being of a size for free passage through the aforesaid opening and adapted to be extended into said water leg and to rest upon said tie rods, the outer header being firmly secured to the front wall of the boiler in a position to wholly cover and seal said opening; and a discharge pipe leading away from the outer header and provided with valved means adapted to be connected with a liquid fuel burner, as and for the purpose set forth.

2. The combination with a boiler structure having a longitudinally extending water leg including spaced parallel side sheets at one side and said structure having its front wall provided with an opening which communicates with said water leg; of a liquid fuel preheating organization including inner and outer headers and fuel circulating tubes connecting the headers with each other and being co-operable therewith and with each other to enable fuel when delivered to the outer header to be conducted to the inner header, thence back to the outer header by means of said tubes, the inner header being of a size to freely enter the opening in the front wall of said structure, the outer header being removably secured to said front wall and disposed to wholly cover said opening and seal same; a discharge pipe leading from the outer header and provided with valved means adapted to be connected with a liquid fuel burner, and means for simultaneously maintaining the spacing of the sheets and supporting said preheating organization.

LANSON B. JOYNER. 

